#pragma once
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define ROW 9
#define COL 9
#define ROWS ROW + 2
#define COLS COL + 2
#define NUM 20

void init_board(char board[ROWS][COLS], int rows, int cols, char a);

void display_board(char board[ROWS][COLS], int row, int col);

void set(char board[ROWS][COLS], int row, int col, int num);

void find(char board1[ROWS][COLS], char board2[ROWS][COLS], int row, int col);
